Portion of a pneumatic tire



FIG. 1 is a perspective view of a portion of a pneumatic tire according to our new design.

FIG. 2 is an enlarged perspective view thereof.

FIG. 3 is a front elevational view thereof; and,

FIG. 4 is a side elevational view, the other side being a mirror image thereof.

In the drawings, the broken lines defining the sidewall, inner bead and the unclaimed sidewall depict environmental subject matter that forms no part of the claimed design. The dash-dot lines represent the peripheral boundary between the claimed tire tread and unclaimed sidewall.

The tread pattern is understood to repeat uniformly throughout the circumference of the tire, as shown schematically in solid lines. 

The ornamental design for a portion of a pneumatic tire, as shown and described. 